Gas-insulated high-voltage switching system

Abstract

A gas-insulated high-voltage switching includes a housing having a switch module including an actuator, a control module, a cable outlet, a transformer, a circuit breaker, and a grounding switch. The circuit breaker and the grounding switch are spatially and structurally separated from one another and may be operated by a common actuator.

1 . A three-phase gas-insulated high-voltage switchgear assembly comprising:
 a housing with in each case one corresponding switch module with a drive for each phase;   at least one busbar;   a control module;   a cable outgoer;   a current transformer;   a disconnector; and   a corresponding grounding switch in each case for each phase,   wherein the disconnector and the grounding switch being spatially and physically separated from one another and being operable by a common drive.   
     
     
         2 . The three-phase gas-insulated high-voltage switchgear assembly as claimed in  claim 1 , wherein the disconnector has a higher current carrying capability than the grounding switch. 
     
     
         3 . The three-phase gas-insulated high-voltage switchgear assembly as claimed in  claim 2 , wherein the higher current carrying capability of the disconector is based on the disconnector having a larger contact cross section than the grounding switch. 
     
     
         4 . The three-phase gas-insulated high-voltage switchgear assembly as claimed in  claim 1 , wherein the disconnector and the grounding switch are arranged concentrically with respect to one another, and
 wherein the disconnector concentrically surrounds the grounding switch, at a distance.   
     
     
         5 . The three-phase gas-insulated high-voltage switchgear assembly as claimed in  claim 1 , wherein the disconnector is in the form of a line disconnector with two horseshoe stationary disconnecting contact pieces, between which a moving disconnecting contact piece is insertable to make contact, and
 wherein the stationary contact piece of the grounding switch has a cylindrical recess, in which the moving grounding contact piece engages, as a pin contact for making contact.   
     
     
         6 . The gas-insulated high-voltage switchgear assembly as claimed in  claim 1 , wherein the disconnector is in the form of a linear-travel disconnector with a stationary disconnecting contact piece, into which the moving disconnecting contact piece is insertable to make contact, and
 wherein the grounding switch is in the form of a cylindrical recess in a contact body into which a moving grounding contact piece is insertable.   
     
     
         7 . The three-phase gas-insulated high-voltage switchgear assembly as claimed in  claim 6 , wherein the disconnector and the grounding switch have a common contact body, which is configured as a stationary contact piece for grounding. 
     
     
         8 . The three-phase gas-insulated high-voltage switchgear assembly as claimed in  claim 7 , wherein the operation of the disconnector and of the grounding switch is interlocked such that at most one of the two switches is ever closed. 
     
     
         9 . The three-phase gas-insulated high-voltage switchgear assembly as claimed in  claim 6 , wherein the moving disconnecting contact piece is guided to be moveable longitudinally in the common contact body of the disconnector and the grounding switch. 
     
     
         10 . The three-phase gas-insulated high-voltage switchgear assembly as claimed in  claim 9 , wherein the common contact body is configured to hold the moving disconnecting contact piece completely therein. 
     
     
         11 . The three-phase gas-insulated high-voltage switchgear assembly as claimed in  claim 9 , wherein the common contact body is uniformly stretched. 
     
     
         12 . The three-phase gas-insulated high-voltage switchgear assembly as claimed in  claim 9 , wherein the common contact body is partially angled. 
     
     
         13 . The three-phase gas-insulated high-voltage switchgear assembly as claimed in  claim 12 , wherein the common contact body is angled such that the moving disconnecting contact piece is moveable linearly without impediment and there is sufficient space for the associated operating drive. 
     
     
         14 . The three-phase gas-insulated high-voltage switchgear assembly as claimed in  claim 5 , comprising:
 a linear-movement/rotating drive for operation of the moving contact pieces of the disconnector and of the moving contact pieces of the grounding switch, the linear-movement/rotating drive being configured to convert a rotary movement to a longitudinal movement and vice versa.   
     
     
         15 . The three-phase gas-insulated high-voltage switchgear assembly as claimed in  claim 5 , comprising:
 a switching rocker for operation of the moving contact pieces of the disconnector and of the moving contact pieces of the grounding switch, by means of the switching rocker only one moving contact piece makes contact with the associated contact point, and the other moving contact piece is at a distance from the associated contact point, so as to prevent simultaneous closure of the contact points which are provided for each moving contact piece.   
     
     
         16 . The three-phase gas-insulated high-voltage switchgear assembly as claimed in  claim 3 , wherein the disconnector and the grounding switch are arranged concentrically with respect to one another, and
 wherein the disconnector concentrically surrounds the grounding switch, at a distance.   
     
     
         17 . The three-phase gas-insulated high-voltage switchgear assembly as claimed in  claim 3 , wherein the disconnector is in the form of a line disconnector with two horseshoe stationary disconnecting contact pieces, between which a moving disconnecting contact piece is insertable to make contact, and
 wherein the stationary contact piece of the grounding switch has a cylindrical recess, in which the moving grounding contact piece engages, as a pin contact for making contact.   
     
     
         18 . The gas-insulated high-voltage switchgear assembly as claimed in  claim 3 , wherein the disconnector is in the form of a linear-travel disconnector with a stationary disconnecting contact piece, into which the moving disconnecting contact piece is insertable to make contact, and
 wherein the grounding switch is in the form of a cylindrical recess in a contact body into which a moving grounding contact piece is insertable.   
     
     
         19 . The three-phase gas-insulated high-voltage switchgear assembly as claimed in  claim 18 , wherein the disconnector and the grounding switch have a common contact body, which is configured as a stationary contact piece for grounding. 
     
     
         20 . The three-phase gas-insulated high-voltage switchgear assembly as claimed in  claim 19 , wherein the operation of the disconnector and of the grounding switch is interlocked such that at most one of the two switches is ever closed. 
     
     
         21 . The three-phase gas-insulated high-voltage switchgear assembly as claimed in  claim 19 , wherein the moving disconnecting contact piece is guided to be moveable longitudinally in the common contact body of the disconnector and the grounding switch. 
     
     
         22 . The three-phase gas-insulated high-voltage switchgear assembly as claimed in  claim 21 , wherein the common contact body is configured to hold the moving disconnecting contact piece completely therein. 
     
     
         23 . The three-phase gas-insulated high-voltage switchgear assembly as claimed in  claim 22 , wherein the common contact body is uniformly stretched. 
     
     
         24 . The three-phase gas-insulated high-voltage switchgear assembly as claimed in  claim 22 , wherein the common contact body is partially angled. 
     
     
         25 . The three-phase gas-insulated high-voltage switchgear assembly as claimed in  claim 24 , wherein the common contact body is angled such that the moving disconnecting contact piece is moveable linearly without impediment and there is sufficient space for the associated operating drive. 
     
     
         26 . The three-phase gas-insulated high-voltage switchgear assembly as claimed in  claim 18 , comprising:
 a linear-movement/rotating drive for operation of the moving contact pieces of the disconnector and of the moving contact pieces of the grounding switch, the linear-movement/rotating drive being configured to convert a rotary movement to a longitudinal movement and vice versa.   
     
     
         27 . The three-phase gas-insulated high-voltage switchgear assembly as claimed in  claim 17 , comprising:
 a switching rocker for operation of the moving contact pieces of the disconnector and of the moving contact pieces of the grounding switch, by means of the switching rocker only one moving contact piece makes contact with the associated contact point, and the other moving contact piece is at a distance from the associated contact point, so as to prevent simultaneous closure of the contact points which are provided for each moving contact piece.   
     
     
         28 . The three-phase gas-insulated high-voltage switchgear assembly as claimed in  claim 6 , wherein the stationary disconnecting contact piece is substantially in the form of a pot.